string with [glib.global.gfree] when not needed any longer.
pbUtilsGetFileExtensionFromCaps
fn
string pbUtilsGetFileExtensionFromCaps(gst.caps.Caps caps)Returns a possible file extension for the given caps, if known.
Parameters
caps | the (fixed) #GstCaps for which a file extension is needed |
Returns
a newly-allocated file extension string, or NULL on error. Free